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IMac G5 17" won't shut down

Will not shut down normally. Reset pram, smu disc repair still won't shut down.re-installed 10.3. nothing works screen goes black but fans keep running.. #3 lite goes out but 1&2 stay lit. only way to shut down is unplug. runs perfect other than this.

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  • paul swallow Jan 19, 2013

    three solutions but not one of them peratin to my problem

  • paul swallow Jan 19, 2013

    the problem is as stated above... nothing to do with sleeping or booting up.. all resets and diagnostic tools known to apple have been done.. New HHD and MB didn't help...

  • paul swallow Jan 19, 2013

    also new battery.. Won't hold time and date either on any start up

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  • Apple Master
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I have minor shutdown problem with mail, won't close or shut down. My ans top left APPLE drop down, force closure, turn of each programme listed. For me works a treat.

Posted on Apr 25, 2014

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SOURCE: G4 imac CD tray keeps opening

You may be trying to load a corrupted disk, or your mac may have a faulty mother board. sorry, im not quite sure exactly what your problem is, but good luck anyway...

Posted on Mar 08, 2009

KenKaBob
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SOURCE: Imac g5 is not turning on. LED1 stays on. I tried

Hello, Sorry to hear you are having troubles,
Is this a 17” iMac G5, if it is, and I think it is, unfortunately, this iMac model was generation 1 of the all in one flat screen design and it's a bit of a Lemon... The hard Drive overheats the video card and the power supply. With time, these 2 elements burn out.
What you have sounds like the power supply. it's a $300 repair, but, it might not be a good investment for you, the new power supply won't last much more than the first one and your video chip won't last much longer....
Best put the money and put it towards a new machine.
Sorry bout that.

Posted on Apr 02, 2009

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SOURCE: Power up IMac but screen blank, fan on, light on but no response

I have one doing exactly this at the moment. It had gone to sleep and the fans were going like crazy. I think it is a Motherboard failure (it happened with many G5 iMacs), this one has been replaced once already, and I can't actually get it to install anything. I'm taking it apart tomorrow to see what I can find inside. If I fond anything I'll let you know.

Posted on Aug 07, 2009

gserle1
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SOURCE: imac g4 lcd black screen replaced pram battery

If you can find an older SVGA monitor, try hooking it up to the port on the back of your mac. If you get video then chances are the LCD display is shot.

Posted on Sep 02, 2009

Macs R We
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SOURCE: imac g5 17 gets some power but no display

Assuming you have the model with four diagnostic LEDs, the lack of LED-3 indicates that the computer and the LCD display are NOT communicating. This LED should be ON when the computer is turned on and video signal is being generated.
The first solution is to reset the PRAM (hold command-option-P-R after the boot chime until you hear another boot chime). If video does not appear, then power down the computer and reset the SMU by pressing the SMU button ONCE ONLY. (The SMU button is located just south of the fan housing and is the button further away from the fan; the other button is a power button.) If this does not fix the video, the next step is to remove the optical drive. If this does not fix the video, put everything back together and attach an external display using the dongle supplied with the unit. If the external display fails to work, you have a logic board problem; otherwise, you have an LCD panel, inverter, or cable problem.

Posted on Apr 02, 2010

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1 Answer

Mb324ll/a white screen


1.Try a Safe Boot
Mac OS X 10.2 and later Safe Boot includes disk checking and repair. First start your Mac in Safe Mode. To do this, shut down your Mac. Now Turn on your computer by pressing the power key while holding down the Shift key. When you see the Apple logo, release the Shift key. After your Mac fully starts, restart your computer normally without holding any keys/buttons during startup. Note that Safe Boot is slower to boot.
2.Run Disk Utility
Turn your Mac off by holding down the power button for a few seconds. Turn on your Mac and hold down the Command and R keys until you see the Apple logo. Then you should see a "Mac OS X Utilities" window. Select Disk Utility, click your OS X hard drive and select verify/repair disk.
3.Reset PRAM
This may fix your boot failure. PRAM ("parameter random-access memory") stores some of your settings. You may reset PRAM. To do that, turn off your Mac. Now turn on your Mac. Then, immediately, hold down the Option-Command-P-R keys until your Mac restarts. When your Mac is starting up, release the keys.
4.Reinstall Mac OS X
If nothing above works, you may try this. Your Mac needs to be connected to the Internet. See number#2 above. Follow the same steps. Restart your Mac and hold down the Command key and the R key until the Apple icon appears; when you see the Mac OS X utilities window, select the Reinstall option.

Mar 13, 2014 | Apple iMac A1224 20" Core2Duo 2.66GHz 2GB...

1 Answer

My imac does not start white screen with a ? mark


reset pram,

try holding down s key to boot in safe mode,


try holding down option key on startup and select drive,


install system disk and restart holding down c key.

Feb 09, 2014 | Apple iMac G4 Desktop

1 Answer

MacBook Pro is slow when disconnected with electric charging.


First step would be to Reset Your Mac's SMC
The method for resetting your Mac's SMC depends on the type of Mac you have. All SMC reset instructions require shutting down your Mac first. If your Mac fails to shut down, try pressing and holding the power button until the Mac shuts down, which usually takes 10 seconds or so.

Mac portables with user-removable batteries (MacBook and most MacBook Pros):

1.Shut down your Mac.
2.Disconnect your Mac portable from its MagSafe connector.
3.Remove the battery.
4.Press and hold the power button for at least 5 seconds.
5.Release the power button.
6.Re-install the battery.
7.Reconnect the MagSafe connector.
8.Turn your Mac on.
Mac portables with non-user-removable batteries (MacBook Air and some late 2009 MacBook Pro models):

1.Shut down your Mac.
2.Connect the MagSafe power adapter to your Mac and to a power outlet.
3.On the built-in keyboard (this will not work from an external keyboard), simultaneously press and hold the left shift, control, and option keys while you press the power button. Release all keys at the same time.
4.Press the power button to start your Mac.

Mac desktops (Mac Pro, iMac, Mac mini):

1.Shut down your Mac.
2.Unplug your Mac's power cord.
3.Press and hold the Mac's power button for 15 seconds.
4.Release the power button.
5.Reconnect your Mac's power cord.
6.Wait five seconds.
7.Start your Mac by pressing the power button.

Alternative SMC reset for Mac Pro:

If you have a Mac Pro that isn't responding to the normal SMC reset as described above, you can force a manual SMC reset by using the SMC reset button located on the Mac Pro's motherboard.

1.Shut down your Mac.
2.Unplug the Mac's power cord.
3.Open the Mac Pro's side access panel.
4.Just below the Drive 4 sled and adjacent to the top PCI-e slot is a small button labeled SMC. Press and hold this button for 10 seconds.
5.Close the Mac Pro's side door.
6.Reconnect your Mac's power cord.
7.Wait five seconds.
8.Start your Mac by pressing the power button.
Now that you have reset the SMC on your Mac, it should be back to operating as you expect. If the SMC reset didn't fix your problems, you can try combining it with a PRAM reset. Although the PRAM works differently than the SMC, it can, depending on your Mac model, store a few bits of information that the SMC uses.

Jan 23, 2013 | Computers & Internet

1 Answer

Apple 20 in Imac G5 turn on for about 40 second and shut it down itself .. please help


Sounds like you need to reset your SMU and NVRAM:

To reset your SMU:
  1. Turn off the computer by choosing Shut Down from the Apple menu, or by holding the power button until the computer turns off.
  2. Unplug all cables from the computer, including the power cord.
  3. Wait 10 seconds.
  4. Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer.
  5. Let go of the power button.
  6. Press the power button once more to start up your iMac.

To reset your NVRAM:

  1. Shut down the computer.
  2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  3. Turn on the computer.
  4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  6. Release the keys.
If those don't resolve the issue, your computer will probably need service. Good luck!

Oct 10, 2010 | Apple iMac G5 Desktop

1 Answer

Imac g5 17 gets some power but no display


Assuming you have the model with four diagnostic LEDs, the lack of LED-3 indicates that the computer and the LCD display are NOT communicating. This LED should be ON when the computer is turned on and video signal is being generated.
The first solution is to reset the PRAM (hold command-option-P-R after the boot chime until you hear another boot chime). If video does not appear, then power down the computer and reset the SMU by pressing the SMU button ONCE ONLY. (The SMU button is located just south of the fan housing and is the button further away from the fan; the other button is a power button.) If this does not fix the video, the next step is to remove the optical drive. If this does not fix the video, put everything back together and attach an external display using the dongle supplied with the unit. If the external display fails to work, you have a logic board problem; otherwise, you have an LCD panel, inverter, or cable problem.

Mar 30, 2010 | Apple iMac G5 Desktop

1 Answer

Grey screen,computer unable to read leopard disc, tried to reset pram using command option p and r with no result, difficulty ejecting leopard disc, sometimes able to get blue screen with holding down the...


I would by pass disk repair and unfortunately go straight to reinstalling Leopard. When you get icon and it asks what you wish to do you want to reinstall and safe old files. Once you reinstall leopard you will find all your old files in previous system located in hd icon.

Oct 13, 2009 | Apple iMac G5 Desktop

1 Answer

My iMac G5 1.8 GHz 2GB ram computer desktop


Hello
If you can run it in safe mode, that means that you have an extension problem. I had most of the time problems with the ATI extensions.
First of all try too boot on another account, an new one would be good, to check if this is not account related.
Secondly i would reinstall the system (a clean install would be good, tough you can try an archive-install)
Thirdly if it isnt fixed I would delete all ATI extensions instead of the one that your graphic card uses. to delete: go to /System/Library/Extensions . 
Hope that helps

Jul 30, 2009 | Apple iMac G5 Desktop

1 Answer

Disk utility won't recognize that there is a superdrive neither does system profiler there is a dvd in the imac, which i watched about 12 hours ago. usual fixes (left click restart) won't do the trick. the...


Hi,

They are a few thing to try althoguht you may have already tried them;

Pram and PMU reset -

First turn off the iMac, once turned off unplug everything from the IMac and physicallly unplug it from the wall, wait about 5 mins at this point, then just plug in the very basics (keyboard + mouse) - this is the PMU or power management unit aspect of this - the next step is a PRAM or paramiter RAM reset

To do this hold down the apple + alt + p + r key on your keyboard just after you turn on the iMac, and keep these held down, you should hear it chime as normal, now if you keep holding down the keys you shoud here it chime again, keep the keys pressed down till you have heard 4 chimes in total.

After that is done let go off the keys and the iMac should restart as normal - can you eject the disk now?

Sadly System profiler is normally very effective at picking up hardware that is installed in your Mac, The fact that it is not brining up anything would suggest that the super drive may be faulty or somehow disconnected, if you try the above and it does not work then i would suggest you call a AARC or apple authorised repair center and have the S/N: Serial number of your Mac ready - you can find your local repair center on the Apple website - for example the closes repair center to me would be Jigsaw Solutions LTD (www.jigsaw24.com) who are the UK's largest retailer of Apple abode and Quark.

I hope the above is helpful and that you do not need to contact an apple authorised repaird center!

Jul 13, 2009 | Apple iMac All-in-one - 2.66GHz Intel Core...

1 Answer

IMac 10.4.11 all of a sudden only boots in safe mode


try resetting the SMC and the NVRAM. This occasionally stores the startup state and any keystrokes used during boot. Common issue with all intel macs. Resetting PRAM and NVRAM 1. Shut down the computer. 2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4. 3. Turn on the computer. 4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears. 5. Hold the keys down until the computer restarts and you hear the startup sound for the second time. 6. Release the keys. Your computer's PRAM and the NVRAM are reset to the default values. The clock settings may be reset to a default date on some models. To reset the SMC on an iMac 1. From the Apple menu, choose Shut Down (or if the computer is not responding, hold the power button for approximately ten seconds until it powers off). 2. Unplug all cables from the computer, including the power cord. 3. Wait at least 15 seconds. The SMC reset occurs automatically once the iMac has been unplugged from the AC power source for several seconds. 4. Plug the power cord back in, making sure the power button is not being pressed at the time. 5. Reconnect your keyboard and mouse to the computer. 6. Press the power button on the back to start up your computer. Note: The iMac does not have a button on the main logic board for resetting the SMC, which eliminates the need to remove the computer?s cover to reset it (as required for some other models).

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2 Answers

Screen Changes and Comupter freezes


It may be possible that the power supply, display and or logicbpard may be having issues. Apple recommends resetting the pram and nvram. If issue persists reset SMU. YOur machine is 6 months outside of the original warranty, but if you purchased the 3 year extension plan, you may want to take action on it.

http://search.info.apple.com/index.html?q=imac%20g5%20reset%20pram&lr=lang_en&search=Go&type=

http://search.info.apple.com/index.html?q=imac+g5+reset+smu&type=&search=Search&lr=lang_en&search=Go

Keep me posted.

Nov 10, 2007 | Apple iMac G5 Desktop

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